Finding the Fourth Proportional to 128,026.08, 176,576.18 and 82,090.08
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Solution
The fourth proportional to 128,026.08, 176,576.18 and 82,090.08 is: 113,220.31
Step by Step Solution
- Step 1: Write the proportion equation
128,026.08 : 176,576.18 = 82,090.08 : x - Step 2: Convert to fraction form
128,026.08/176,576.18 = 82,090.08/x - Step 3: Cross multiply
128,026.08x = 176,576.18 × 82,090.08 - Step 4: Simplify right side
128,026.08x = 14,495,152,331.84 - Step 5: Solve for x
x = 14,495,152,331.84/128,026.08 - Step 6: Final answer
x = 113,220.31
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.